<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <title>首页</title>
    <style>
        .container {
            text-align: center;
            margin-top: 50px;
        }
    </style>
</head>
<body>
<div class="container">
    <h1>欢迎回来，<span th:text="${username}"></span>！</h1>
    <p><a href="/logout">退出登录</a></p>
</div>
</body>
</html>